基于单螺旋CT原始数据的三维图像重建的插补算法

A 3-D Image Reconstruction Algorithm Based on Helical CT Raw Data

提出利用螺旋扫描时的连续性和断层图像重建时的数据充分条件,利用较少的螺旋周期内所采集的原始数据,采用直接插补算法重建出较多的二维图像,从而进行三维重建的方法。

A CT 3-D image is reconstructed based on a lot of 2-D slice images. A new 3-D image reconstruction method, presented in this paper, is to use the helical scan continuity, sufficient condition of image reconstruction and the raw data from a few helical scan cycles to reconstruct,by a direct interpolation algorithm,2-D images and then 3-D images.